package com.cl.config;


import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.http.HttpServletRequest;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    //ShiroFilterFactoryBean  第三步
    @Bean
    public ShiroFilterFactoryBean shiroFilterFactoryBean(@Qualifier("defaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);
        //添加shiro的内置过滤器
        /**
         * anon:  无需认证就可以访问
         * authc： 必须认证才能访问
         * user:  必须拥有  记住我 功能才能访问
         * perms：拥有对某个资源的权限才能访问
         * role： 拥有某个角色权限才能访问
         */
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<>();


        bean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        bean.setUnauthorizedUrl("/today.html");
        return bean;
    }

    //DefaultWebSecurityManager  第二步
    @Bean
    public DefaultWebSecurityManager defaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
       DefaultWebSecurityManager defaultWebSecurityManager = new DefaultWebSecurityManager();
       //关联userRealm
        defaultWebSecurityManager.setRealm(userRealm);

       return defaultWebSecurityManager;
    }

    //创建 realm   需要自定义  第一步
    @Bean
    public UserRealm userRealm(){
        return new UserRealm();
    }


}
